Hey,
recently I decided to open up and play around with my ages-old
changer, the Sony CDP-C315M. Turned out the CXD2500 had an S/PDIF out.
Note: it's my first mod of this kind, and I haven't been following any guides.
The datasheet said that HIGH on pin 59 turns on the S/PDIF on pin 60, and that V_HI was "at least 0.7 Volt". No maximums were told for this pin's HIGH state, but the chip's absolute max is 7 Volt for inputs, and I believe the datasheed also said HIGH should be as near as possible to V_dd.
So what I did was to tie +5V from pin 73 (V_dd, one of two) to pin 59 (MD2). I connected a chinch, center to pin 60 (DOUT) and mesh to digital GND.
The soldering alone was pretty hard, as I only have one of those oldschool pistol-shaped soldering irons, that use 0.5 milimeter wire as the tip
But I made it.
Now for the receiver... Since I only have a ghetto sound setup, it's a (don't flame me) SB Live Value (don't flame me).
I connected to the CD_SPDIF header, with the centre connected to the pin that doesn't go to the card's GND, and the mesh... to the pin that goes to GND.
Connected the thing with a chinch cable, and nothing fried. The music plays on the player's analog out, but the digital... just gives me bit-garbage (put a CD-ROM into an old CDA drive, and it's the same).
This thread, which popped out from the search:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=4438&highlight=
hinted me that the format on the CXD2500's S/PDIF out could be wrong, and the fact that the SB Live is a big crap doesn't help at all.
Note that I know S/PDIF only as far as connecting my CD-ROM to the sound card
(I did have to make my own plugs. Just can't find those damn digital ones! Had to cut down the analog CD Audio plugs)
I did use my bottom-line multimeter, as well. The S/PDIF Out read 1572 Ohm when the player is off, and "infinite" when it's on. Also, the voltometer showed around 8-10 Volt when the player was on.
I guess the variance came from the fact that it IS a digital line, and that the multimeter IS just a cheap digital one.
So, how do I make it work?
recently I decided to open up and play around with my ages-old
changer, the Sony CDP-C315M. Turned out the CXD2500 had an S/PDIF out.
Note: it's my first mod of this kind, and I haven't been following any guides.
The datasheet said that HIGH on pin 59 turns on the S/PDIF on pin 60, and that V_HI was "at least 0.7 Volt". No maximums were told for this pin's HIGH state, but the chip's absolute max is 7 Volt for inputs, and I believe the datasheed also said HIGH should be as near as possible to V_dd.
So what I did was to tie +5V from pin 73 (V_dd, one of two) to pin 59 (MD2). I connected a chinch, center to pin 60 (DOUT) and mesh to digital GND.
The soldering alone was pretty hard, as I only have one of those oldschool pistol-shaped soldering irons, that use 0.5 milimeter wire as the tip
But I made it.
Now for the receiver... Since I only have a ghetto sound setup, it's a (don't flame me) SB Live Value (don't flame me).
I connected to the CD_SPDIF header, with the centre connected to the pin that doesn't go to the card's GND, and the mesh... to the pin that goes to GND.
Connected the thing with a chinch cable, and nothing fried. The music plays on the player's analog out, but the digital... just gives me bit-garbage (put a CD-ROM into an old CDA drive, and it's the same).
This thread, which popped out from the search:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=4438&highlight=
hinted me that the format on the CXD2500's S/PDIF out could be wrong, and the fact that the SB Live is a big crap doesn't help at all.
Note that I know S/PDIF only as far as connecting my CD-ROM to the sound card
(I did have to make my own plugs. Just can't find those damn digital ones! Had to cut down the analog CD Audio plugs
)I did use my bottom-line multimeter, as well. The S/PDIF Out read 1572 Ohm when the player is off, and "infinite" when it's on. Also, the voltometer showed around 8-10 Volt when the player was on.
I guess the variance came from the fact that it IS a digital line, and that the multimeter IS just a cheap digital one.
So, how do I make it work?
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